I have a nice R-4C that has an issue I have never seen before. The AGC only
functions in Slow mode. The AGC switch checks out as does the Function switch.
A previous owner had jumbled the wires to the AGC switch (probably trying to
fix the problem)- I am close to 100% sure they are now correct- but the problem
persists. In all positions except Slow, the AGC voltage is high, around -75VDC
from memory and thus cuts off the stages controlled by AGC. In Slow, the RX
appears to function normally and S meter readings are OK.
Anyone have a suggestion?
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